Journal
MICROMACHINES
Volume 13, Issue 9, Pages -Publisher
MDPI
DOI: 10.3390/mi13091491
Keywords
anti-reflection; multiscale structure; Marangoni effect; anti-glare; femtosecond laser
Categories
Funding
- Guangdong Basic and Applied Basic Research Foundation [2020A1515010519]
- Equipment Pre-Research Key Laboratory Foundation [6142207200606]
- Fujian Provincial Science and Technology Programme (Industry Oriented Key Project) [2020H0006]
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This paper proposes a single-step controllable method based on an infrared femtosecond laser for self-generation multiscale anti-reflection structures on glass. By optimizing the laser parameters, multiscale structure with broadband anti-reflection enhancement is achieved. The average reflectance of the laser-textured glass in the 300-800 nm band is reduced by 45.5% compared with the unprocessed glass.
The anti-reflection of transparent material surfaces has attracted great attention due to its potential applications. In this paper, a single-step controllable method based on an infrared femtosecond laser is proposed for self-generation multiscale anti-reflection structures on glass. The multiscale composite structure with ridge structures and laser-induced nano-textures is generated by the Marangoni effect. By optimizing the laser parameters, multiscale structure with broadband anti-reflection enhancement is achieved. Meanwhile, the sample exhibits good anti-glare performance under strong light. The results show that the average reflectance of the laser-textured glass in the 300-800 nm band is reduced by 45.5% compared with the unprocessed glass. This work provides a simple and general strategy for fabricating anti-reflection structures and expands the potential applications of laser-textured glass in various optical components, display devices, and anti-glare glasses.
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